S&C Electric 252060R3 - SM-4 Medium Voltage Fuse (14.4kV 40A Slow-Blow)

S&C Electric 252060R3 is a medium voltage fuse designed for circuit protection in industrial power distribution systems. This SM-4 type fuse features a 14.4kV voltage rating and 40A current capacity with slow-blow characteristics for controlled interruption. The Class E-rated unit is constructed with durable materials for reliable performance in harsh environments, complying with IEEE/ANSI standards for medium-voltage applications. Its 2 lb compact design makes it suitable for switchgear, transformers, and feeder protection in utility and industrial settings.

Key Features & Specifications

• Type: SM-4 medium voltage current-limiting fuse
• Voltage Rating: 14,400V AC
• Current Rating: 40A
• Class Rating: E
• Velocity: Slow-blow operation
• Weight: 2 lb
• Standards: IEEE/ANSI compliant
• Applications: Industrial power distribution, switchgear protection, transformer circuits